telltheanswer
telltheanswer telltheanswer
  • 13-08-2016
  • Mathematics
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find 3+(-9) should you add or subtract 3 and 9? Why?

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dasetka
dasetka dasetka
  • 13-08-2016
For 3 + (-9), you should subtract 9 from 3. When you add a negative number it's the same thing as just subtracting said number. So, to solve this problem, you would change 3 + (-9) to 3 - 9, which is -6.
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